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Two moles of ethanal in the presence of ...

Two moles of ethanal in the presence of dil. `NaOH` gives 3-hydroxybutanal. What is this reaction known as ? 

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Aldol reaction
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Ethanal to 3-hydroxybutanal

Benzoyl chloride on reduction with H_(2) in the presence of Pd-BaSO_(4) gives benzaldehyde. What is this reaction known as ?

Knowledge Check

  • Acetone undergoes reduction with hydrazine in the presence of NaOH to form propane. This reaction is known as :

    A
    Clemmensen reduction
    B
    Wolff-Kishner reduction
    C
    Rosenmund reduction
    D
    Reformatsky reaction.

  • Enthanal reacts with alkali to give 3-hydroxybutanal. The reacation is:

    A
    polymerisation
    B
    Claisen condensation
    C
    aldol condensation
    D
    none of these

  • Ethanal reacts with alkali to give 3- hydroxy butanal . The reaction is

    A
    Aldol condensation
    B
    Claisen condensation
    C
    Cannizzaro's reaction
    D
    Clemmenson reduction

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    Aromatic aldehydes in the presence of CN^(-) ion give acyloins. The reaction is known as :

    Acetaldehyde reacts with nitromethane in the presence of dil. NaOH to give

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